Borosilicate Glass Window
Borosilicate Glass Windows are precision optical components manufactured from high-quality borosilicate glass material, offering excellent thermal stability, low thermal expansion and good visible light transmission. Chenyu Optics manufactures borosilicate glass windows uncoated or with VIS AR and NIR AR coatings for imaging, laboratory and industrial inspection systems.
Borosilicate Glass Window Overview
Borosilicate Glass Windows are precision optical components manufactured from high-quality borosilicate glass material, offering excellent thermal stability, low thermal expansion and good visible light transmission.
With strong chemical resistance and reliable mechanical performance, borosilicate glass windows are suitable for general optical protection, imaging systems, laboratory equipment, industrial inspection systems and applications requiring stable performance under temperature variations.
Chenyu Optics supports custom borosilicate glass window manufacturing according to customer drawings, including custom diameter, thickness and coating design for prototype and repeat production.
Key Advantages of Borosilicate Glass Window
Imaging & Industrial Inspection Systems
Borosilicate glass windows are widely used for optical protection and stable visible-wavelength transmission in imaging systems, laboratory equipment and industrial inspection setups.
Typical Specifications of Borosilicate Glass Window
| Material | Borosilicate Glass |
|---|---|
| Optical Function | Optical protection / Visible transmission window |
| Transmission Range | Approx. 350 - 2500 nm (depending on glass grade and thickness) |
| Refractive Index | Approx. 1.47 @ 589 nm |
| Thermal Expansion | Low |
| Chemical Resistance | Excellent |
| Surface Flatness | Available up to λ/10 @ 633 nm |
| Surface Quality | 40-20 scratch-dig standard, 20-10 available |
Spectral Transmission Curve (Typical)
Why Choose Chenyu Optics for Borosilicate Glass Window
Chenyu Optics focuses on drawing-based precision optical window manufacturing for imaging, laboratory and industrial protection systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard borosilicate glass windows.
Manufacturing Capability for Borosilicate Glass Window
Precision Polishing
High surface quality processing for stable optical performance under temperature variation.
Optical Coating
VIS AR and NIR AR coating options for imaging, laboratory and industrial protection applications.
Inspection & Packaging
Dimensional inspection, surface review, optical performance checking and protective packaging before shipment.
Custom Manufacturing Options for Borosilicate Glass Window
Dimensions & Geometry
Custom diameter and thickness can be manufactured according to customer drawings, with standard or custom window shapes.
Surface & Mechanical Quality
Surface flatness and surface quality can be selected according to optical performance requirements, supported by the material's strong chemical and thermal resistance.
Coating & Wavelength Design
Uncoated, VIS AR, NIR AR and custom AR coatings can be specified for imaging, protective or industrial applications.
Borosilicate Glass Window Material Comparison
| Borosilicate Glass | Fused Silica | Sapphire | Calcium Fluoride (CaF₂) | |
|---|---|---|---|---|
| Transmission | Visible range, general-purpose | UV to NIR, approx. 0.18 – 2.5 μm | UV to MWIR, commonly 0.2 – 5.5 μm | UV to MWIR, approx. 0.13 – 8.0 μm |
| Refractive Index | Approx. 1.47 @ 589 nm | Approx. 1.46 @ 1 μm | Approx. 1.76 | Approx. 1.43 @ 1 μm |
| Mechanical & Cost Notes | Durable, cost-effective, good thermal shock resistance | Hard, chemically durable, higher cost than borosilicate | Very hard and chemically durable, highest cost | Relatively soft and brittle, specialty UV pricing |
| Typical Use | General optical protection, imaging, laboratory windows | UV spectroscopy, laser optics, semiconductor equipment | Protective windows, harsh environment optics | UV spectroscopy, excimer laser optics |
Applications of Borosilicate Glass Window
Imaging Systems
Stable visible-wavelength transmission for imaging applications.
Optical Instruments
Reliable protective windows for instrument optics.
Laboratory Equipment
Thermally stable windows for laboratory optical setups.
Industrial Inspection Systems
Durable protective windows for inspection equipment.
Protective Optical Covers
Chemically resistant covers for optical protection.
Machine Vision Systems
Stable optical windows for industrial vision applications.
Borosilicate Glass Window FAQ
What are borosilicate glass windows used for?
Borosilicate glass windows are commonly used for optical protection, imaging systems, laboratory equipment, and industrial inspection applications.
Why choose borosilicate glass for optical windows?
Borosilicate glass provides low thermal expansion, good chemical resistance, and stable optical performance under temperature variations.
Can borosilicate glass windows be used in high-temperature environments?
Yes. Their low thermal expansion and thermal stability make them suitable for many high-temperature optical applications.
Can borosilicate glass windows be customized?
Yes. Chenyu Optics provides customized sizes, thicknesses, surface quality, and VIS/NIR AR coating options.
What information should I provide for a quotation?
Please provide diameter, thickness, surface flatness, surface quality, coating requirement, quantity and drawing if available.
Where can I learn more about optical window materials?
Additional optical material information can be found from Edmund Optics.
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Need Custom Borosilicate Glass Windows?
Send us your drawing, diameter, thickness, coating requirements and quantity. Chenyu Optics will review the optical and mechanical specifications and provide a suitable borosilicate glass window manufacturing suggestion.